Spring fastening of the button type



June 1 192s. 1,586,572

T. MORTON SPRING FASTENING OF THE BUTTON TYPE Filed Nov. 5, 1925 2 Sheets-5heet 1 T Mar for) mvzivral v '2 Sheets-Sheet, 2

T. 'M'ORTQN SPRING FASTENING OF THE sumo: TYPE Filed No 5 1925 June 1 1926.

v 4 l g. 1 F

Fig.18

Patented June 1 1926.

1 JUNE .STA

TEST Pars rnoMAs MORTON; or BIRMINGHAM, ENGLAND;

' SPRING FASTENI'ENGV Application filed no emt ra1925, Serial No This intention hasfor itsobject to provide an improved fastening of the button type suited for a variety of purposes and, intended primarily foruse inconjunction with the flexible weather screens of motor tem of four stops, two or which lie between the parallel members of the catch whilst the other two lie 1 in contact with opposite internal peripheral portions of the catch.

The invention, also comprises the formation of the finger plece and actuating abutments on a pair of separate telescopic or like parts which are united'by'expanding or riveting one part within the other. The expanding of one part-into the other may be effected by a metal plug which by compression is caused to dilate one end of the inner part int part. i i a Also the invention comprises "the use of a catch member having a V polygonally I shaped periphery and .a pair of parallel transverse portions formed integrally with l the periphery. i t I 1 t In the two accompanying sheets of cxplanatory drawings Figural is a' sectional side elevation of one form of fastening cordahcewith this invention. r Figure 2is an-lelevation of the complei'nentary part of the fastening adapted to hers 1n the clevlce shown 1n Figure 1.

Figure 3 is a sectional plan of thefastening shown in Figure-1. I V

Figures 4 and 5, are plan and sectional 'views of the outer finger piece.

Figure 6 is a sectional view; of the inner or operative portion of the finger piece.

which act ssile e i s. s abs" eel the fastening- U 0 engagement with the outer constructed in Uac-- be detachably engaged by the spring 1ne1nportion of the knob or OF 'rrrn summon TYP 66,610, and in Great Britain November 4,1924. .t

Figure 7 is an elevation of a cylindrical soft metal plug by which the parts shown in Figures 5 and Gare secured together.

F igureSiS aninverte Y shown in Figure 6. o i Figures9 and 10 aresectional side elevation and sectional inverted plan showing a modified construction of the fastening,

and F igures ll 'a11d12 are sectional views of the pieces from which the knob or actuating element of this modified construction is made. v

Figure 13 is" a sectional elevation of a further construction of fastening, and F igure 14 shows an'alternative element with fwhichthel fastening canengage, 1 I I,

Figure 15 s a sectlonal plan of theQfastening shown in Figure 13.

fied form of a finger piece for fastening shown in Figure 1 3.

Figure 17 is' a sectional elevation of a still further construction of fastening, and Figure 18 is an elevation'of'the fingerpiece used in the fastening shown in Figure 17. In carrying the invention into etl'ect as shown in Figures 1+8, the body part of the fastening is made; from a pair of sheet metal elements a, b, of circular form use with the shallow I internal cavity in Which is located the catch springs. One of the p'artslb) is adapted in any convenient manner for ellecting attachment to the material as d, on to which the fastening is to be secured, and in the same part is formed a central aperture to accommodate {the grooved or shouldered portion evfof the complementary part of the OFF-1C5,

dplan ofthe part T Figure 16 is asectional viewoof'a inodif 1 adaptedjwhen ,placed itogether to form a' i fastening. The part .b in the form shown in Figure 1 is attached to the material (Z by the provision ,on'the underside of the same of tongue pieces ffadapted to b'e insertedthrough slots in a washer g and bentoverthesame as illustrated; On the'inner face of the part Z) four equidistant stop pieces 71-, z', are formed. One pair 7L lie be tween the, two transverse parallel portions of the wire catch spring 0 which detachahly engage the. groove or shoulder of the; other peripheral portions of the spring {as shown. As h'itherto, thespring is made by bending part; of the-fastening. The other'pair'ofi stop pieces 2' lie between opposite {internal a ilel t i -r r #9. as r qu r d f s I i that the parallel portions are integral with the peripheral portion. In my tastenings the peripheral portion is made of polygonal form. The said stop pieces serve also as distance pieces which determine the depth of the space or chamber containing the s Jring.

Preferably the two portions of thebody part are united by bending a flanged edge of the part a over the periphery of the other part b. The said edge may advantageously be serrated to augment the grip o t'the article on the material to which it is secured.

The outer element of the body part is also formed with a central aperture through which passes the inner portion o't'a'turn button or finger.piece situatedon the outer side of the fastening. The finger piece is preferably made from the several parts shown in Figures i -T. The outer one j is hollow and is pressed to an elliptical. form. Another is of tubular and cylindrical form, and atone end is provided with a flange Z. The parts is, Z, are held together by tongue pieces in on the part 7a which are bent over the underside of the same and are also adapted to serve as projecting alnitnient pieces which lie'het-ween the transverse members of the spring 0. The. part]: is inserted inthe other part j at. opposite sides of the outer portion a ott-helhody and are secured together by forcing into the inner part a soft metal plug 01 which is expanded under pressure, and the expansion causes the upper portion of the inner part Z: to dilate into engagement with the elliptical finger piece y' as shown inFigure' l. lVhen so secured the parts cannot beseparated, but they are freely rotatable as one piece relatively to the body part a. IVhen rotated the abutment pieces m press apart the spring members and release them from the complementary portion 6 of the fastening. Excessive rotation of the finger piece such as might cause permanent distort-ion lot the spring is prevented byithe pair of stop piece'si which engage the peripheral portions of the spring.

Engagement of the two parts of the tastening is effected by pressing one part over the other so that thespr'ing members engage the groove or head in. the usual manner.

The device shown in Figures 9-12 difi'ers from that of Figure 1 only-in the construction of the finger piece. In the modification the finger piece consists of an inner tubular part 7c which is formed integrally with a fianqel, thelatter being cut transversely to to m a'pair oi slots 0 inwhich the transverse parts of the spring ccan lie. The portions m, llltBllDetllfitG to the slots serve: as abutni'ents for -esp"ending the. said' portions of the spring" out of ei gagenient with the" complemenia'ry portioii' of thei fastening. innfer part his formed w than" internal-shouldierat its upper en d' and in? this shoiilde is formed a square hole through which can pass a projection 79 from the inner side of the outer portion 7' of the finger piece. After the parts j and lcfhave been placed in position-over the part a, they are united by squeezing or riveting the projection p over the internal shoulder of 70 as shown in Figure 9.

For somepurposes, I prefer to actuate the catcher spring members by one of the elements of the body part, instead of by a separate finger piece. I then employ the construction shown in Figures 13 15. The body part is made as before troni'two principal elements a, '7) adapted to contain the catch or spring members between'then'i'. But instead of securing the body elements together rigidly as formerly, I make the outer one a rotatable relatively to the other, the two parts being prevented from separation'preterably livhe idiiu r the periphery otthe outer element over the periphery of the'inner element. The'outer element is adapted to serve as a finger piece. This may be effected by niakingthe part a as shown in Figure 13 and'knurhng the periphery of the saidpart under the action of an expansible metal plug a, as. in F i gure l6. Internally thepart' a is provide'dwitlrprojections o'r abutments m for engaging and actuating the catch or spring members. I

The principal diii'erencebetween the con struction shown inFigures 13 and 15 and that shown inFignre l is that the inde p'enden'tly rotatable finger piece 1S"(l1SP911SQ(l with. and the outer element of the body part is adaptedto servethe same 'tunction. Thereby I am enabled to producea flatter or more compact fastening when required. In other partici'ilars'the fastening is essentiallv the same as that first described.

In the construction fillOWl] in Figure 13, it is necessary in some'cases to make special provision for preventing thexunder edge of the element a'troni embedding itself in the flexible material, to which the fastening is attached. For this" purpose a washer g is placed beneath the'body part; Preferably thewasher'is provided around it's'periphery with tooth like projections which can engage the fiexibleinaterial. Also the washer is adapted"to'engage'the undersideo'f the body part .or .is otherwise attached thereto, to

prevent relati've' rotation.

In- Figure 13 n alternative device is shown for securing the fastening to th'e'ffa bjr10. Instead of using tongue pieces as -alill) ready described, the boss of the part b is externally screw threaded for engagement by an internally screw threaded washer g.

For some purposes it is advantageous to provide the attaching, means at the upper or outer side of the body part. This may be effected as shownin Figure 17 The elementa of the body part through which'the rotatable fingerpiece passes is adapted to form part of the attaching device. Thus, the boss on the outer element of the body part may; be screwed externally, for co-operation wit 7 to the boss. Or the attachment device shown in Figure 1 may be used. The finger piece is made in two parts, j, k, whichare secured together in a manner similar to that already described in connection with Figures 11 and 12. The inner part is formed with projections or abutments mior actuating the spring'member.

Having thus described'my invention what its inner end or side with a pair of abuta screwed washer g which screws on member ments arrangedto liebetween the parallel members of said catch member, by which the the combination of a pair of members formmg the body part, a sprlng catch member 1 located within the body part, ,said'catch having a polygonally shaped peripheral portion and a pairof transverse parallel parts formed integrally with-the periphery, a system of four stops on one of the body members, two of the stops enga g ing the inner periphery of the catch member and the other two located between the transverse portions otthe said member, a

finger piece ro-tatably carried on the other body member, and a' pair of abiitments in conjunction with the" finger piece and THOMAS MORTON. 1 

